2Fe + 6H2SO4 = Fe2(SO4)3 + 3SO2 + 6H2
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
2 Na + O2 → Na2O2
4Al + 3O2 → 2Al2O3
3463753736363637364-$82+#+#2+2-#8-2-#62-273-$737373737367338737+3837737474737DGDHJSIEHSJD
2Fe + 6H2SO4 = Fe2(SO4)3 + 3SO2 + 6H2
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
2 Na + O2 → Na2O2
4Al + 3O2 → 2Al2O3
3463753736363637364-$82+#+#2+2-#8-2-#62-273-$737373737367338737+3837737474737DGDHJSIEHSJD